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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Statement of Comprehensive Income [Abstract] |  |  |  |
Net income (loss) attributable to White Mountains’s common shareholders | $ 40.8 | $ 562.1 | $ (3.7) | $ 604.7
Other comprehensive income, net of tax: |  |  |  |
Other comprehensive (loss) income, net of tax | (0.8) | 0.0 | (1.7) | 0.2
Comprehensive income from discontinued operations, net of tax | 0.0 | 3.0 | 0.0 | 3.2
Comprehensive income | 40.0 | 565.1 | (5.4) | 608.1
Comprehensive income (loss) attributable to non-controlling interests | 0.2 | 0.0 | 0.2 | (0.1)
Comprehensive income (loss) attributable to White Mountains’s common shareholders | $ 40.2 | $ 565.1 | $ (5.2) | $ 608.0
Basic earnings (loss) per share |  |  |  |
Continuing operations (in usd per share) | $ 18.27 | $ 5.36 | $ 3.90 | $ 7.03
Discontinued operations (in usd per share) | (5.44) | 125.45 | (4.98) | 128.03
Total consolidated operations (in usd per share) | 12.83 | 130.81 | (1.08) | 135.06
Diluted earnings (loss) per share |  |  |  |
Continuing operations (in usd per share) | 18.27 | 5.36 | 3.90 | 7.03
Discontinued operations (in usd per share) | (5.44) | 125.45 | (4.98) | 128.03
Total consolidated operations (in usd per share) | 12.83 | 130.81 | (1.08) | 135.06
Dividends declared per White Mountains’s common share | $ 0.00 | $ 0.00 | $ 1.00 | $ 1.00

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